21441014 has 16 divisors (see below), whose sum is σ = 38354688. Its totient is φ = 8789352.

The previous prime is 21441011. The next prime is 21441031. The reversal of 21441014 is 41014412.

It is a junction number, because it is equal to n+sod(n) for n = 21440983 and 21441001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32972 + ... + 33615.

It is an arithmetic number, because the mean of its divisors is an integer number (2397168).

Almost surely, 2^21441014 is an apocalyptic number.

21441014 is a deficient number, since it is larger than the sum of its proper divisors (16913674).

21441014 is a wasteful number, since it uses less digits than its factorization.

21441014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66619.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 21441014 is about 4630.4442551444. Note that the first 3 decimals coincide. The cubic root of 21441014 is about 277.8103618428.

Adding to 21441014 its reverse (41014412), we get a palindrome (62455426).

The spelling of 21441014 in words is "twenty-one million, four hundred forty-one thousand, fourteen".